球状黒鉛鋳鉄とステンレス鋼の重ね摩擦攪拌接合 Lapped Friction Stir Welding between Ductile Cast Irons and Stainless Steels

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This study investigated influence of preheating temperature and welding speed on microstructure of dissimilar lap friction stir weld of ductile cast iron FCD450 and 304 stainless steel. The stainless steel was placed on FCD450, and then FSW was carried out at tool rotational speed of 200, 400 and 600rpm and welding speed between 1 and 10mm/s. Preheating was conducted at 573 and 773K. Martensitic structure was formed in HAZ of FCD450 without the preheating, while the preheating resulted in formation of a pearlite structure. Even when the preheating was employed, however, stir zone (SZ) of FCD450 had the chill structure at lower welding speed, because the SZ temperature exceeded the eutectic temperature. Formation of the chill structure in the SZ could be prevented at higher welding speed. This study showed that friction stir welding would be available as a dissimilar welding method between ductile cast iron and stainless steel.

収録刊行物

  • 溶接学会論文集 : quarterly journal of the Japan Welding Society

    溶接学会論文集 : quarterly journal of the Japan Welding Society 27(3), 176-182, 2010-01-20

    一般社団法人 溶接学会

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各種コード

  • NII論文ID(NAID)
    10030149302
  • NII書誌ID(NCID)
    AN1005067X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    02884771
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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